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Homework Help: Electricity Problems - conductive spheres

  1. May 12, 2012 #1
    1. The problem statement, all variables and given/known data


    Initially, metal sphere X is charged to an electric potential of 10,000 volts, with a total charge on its surface of +Q. Metal spheres Y and Z are initially uncharged. Spheres Y and Z are the same size as sphere X. All three spheres are held by insulated stands.


    6. Sphere X is connected by a conducting wire to sphere Y. The wire is then removed and used to connect sphere Y and Z. After the wire is again removed, what is the potential on sphere Z?
    a. 10,000 V
    b. 5,000 V
    c. 2,500 V
    d. 1,250 V
    e. 0
    7. What is the charge on sphere Z after the procedure described in problem 6?
    a. +Q
    b. + ½ Q
    c. + ¼ Q
    d. + 1/3 Q
    e. –Q


    2. Relevant equations



    3. The attempt at a solution

    Is it A and C?
     
  2. jcsd
  3. May 12, 2012 #2
    Connecting two spheres will cause charge flow till both have equal potentials. In short answer is C and C.
     
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